中国国际丝路中心大厦超高层结构整体稳定性分析

引用文献:

王建峰 虞终军 段炼. 中国国际丝路中心大厦超高层结构整体稳定性分析[J]. 建筑结构,2023,48(09):1-6.

WANG Jianfeng YU Zhongjun DUAN Lian. Overall stability analysis of super high-rise structure of China International Silk Road Center Building[J]. Building Structure,2023,48(09):1-6.

作者:王建峰 虞终军 段炼
单位:同济大学建筑设计研究院集团)有限公司
摘要:中国国际丝路中心大厦建筑高度498m,主体结构高度482.5m,属于超高层建筑。首先分析了现行规范刚重比计算公式的适用条件,然后依据本项目楼层质量、地震作用和风荷载的实际分布情况,对现行规范中的刚重比计算公式进行修正。通过采用修正后的刚重比计算公式对本项目的整体稳定性进行评价,结果表明项目整体稳定性满足要求,但需要考虑结构的重力二阶效应。采用ETABS软件对结构进行整体屈曲分析,结果表明,塔楼具有较好的整体稳定性。线弹性屈曲分析计算得到的刚重比数值与修正后的刚重比公式计算得到的数值较为接近,前者略大于后者,可见采用修正后的刚重比公式对结构进行设计偏安全。
关键词:中国国际丝路中心大厦;超高层建筑;整体稳定性;刚重比;屈曲分析;
作者简介:王建峰,硕士,正高级工程师,主要从事超高层及复杂建筑结构设计与研究,Email:22wjf@tjad.cn。段炼,硕士,工程师,主要从事超高层及复杂建筑结构设计与研究,Email:22dl@tjad.cn。
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参考文献[1] 丁洁民,虞终军,吴宏磊,等.中国国际丝路中心超高层结构设计与关键技术[J].建筑结构学报,2021,42(2):1-14.
[2] 虞终军,王建峰,段炼.中国国际丝路中心大厦项目施工图设计中的罕遇地震抗震性能分析及评价[J].建筑结构,2021,51(S1):624-631.
[3] 段炼,邓杰,王建峰,等.498m超高层建筑核心筒斜墙转换区设计研究[J].建筑结构,2021,51(S1):164-169.
[4] 李楚舒,李立,刘春明,等.结构设计中如何全面考虑P-Δ效应[J].建筑结构,2014,44(5):78-82.
[5] 北京金土木软件技术有限公司,中国建筑标准设计研究院.SAP2000中文版使用指南[M].2版.北京:人民交通出版社,2012:445.
[6] 高层建筑混凝土结构技术规程:JGJ 3—2010[S].北京:中国建筑工业出版社,2011.
[7] 徐培福,肖从真.高层建筑混凝土结构的稳定设计[J].建筑结构,2001,31(8):69-72.
[8] STAFFORD SMITH B,COULL A.Tall building structures:analysis and design[M].New York:Wiley,1991.
[9] 沣东新城中国国际丝路中心大厦项目(A1地块)超限高层抗震设防专项审查报告[R].上海:同济大学建筑设计研究院(集团)有限公司,2019.
[10] 杨学林,祝文畏.复杂体型高层建筑结构稳定性验算[J].土木工程学报,2015,48(11):16-26.
Overall stability analysis of super high-rise structure of China International Silk Road Center Building
WANG Jianfeng YU Zhongjun DUAN Lian
(Tongji Architectural Design(Group) Co., Ltd.)
Abstract: The building height of China International Silk Road Center Building is 498m, and the height of the main structure is 482.5m, which is a super high-rise building. Firstly the applicable conditions of the calculation formula of the stiffness-to-weight ratio in the current code was analyzed, then the calculation formula of the stiffness-to-weight ratio in the current code was revised according to the actual distribution of the project′s floor mass, earthquake action and wind load. The overall stability of the project was evaluated by using the revised stiffness-to-weight ratio calculation formula, and the results show that the overall stability of the project meets the requirements, but the second-order effect of gravity of the structure needs to be considered. The overall buckling analysis of the structure was carried out by ETABS software, and the results show that the tower has good overall stability. The stiffness-to-weight ratio value calculated by linear elastic buckling analysis is close to the value calculated by the revised stiffness-to-weight ratio formula, and the former is slightly larger than the latter, which shows that the design using the revised stiffness-to-weight ratio formula is safer.
Keywords: China International Silk Road Center Building; super high-rise building; overall stability; stiffness-to-weight ratio; buckling analysis
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